Nobody wants to see their favorite fighters go out on a brutal loss. But the UFC cage doesn’t care about sentiment or legacy and one fight can change everything. A devastating knockout can steal a fighter’s chin forever. A gruesome injury can break both bone and spirit. And occasionally, ‘Father Time’ shows up mid-fight to remind everyone that this sport belongs to the young and hungry. The saddest moments in UFC history aren’t always title losses or shocking upsets. They’re the fights that end careers in ways nobody wanted to see.<\/p>
These aren’t retirements after long farewell tours. These are career-enders that happened in real time while millions watched. Some fighters tried coming back but were never the same. Others took the hint and walked away immediately. Either way, these 5 UFC<\/a> fights basically ended careers and left fans wondering what could have been if things had gone differently.<\/p> Silva’s second fight with Weidman didn’t just end his title reign. It nearly ended his whole leg. After losing his championship by knockout in their first meeting, Silva came back determined to prove it was a fluke. He looked focused and dangerous through the first round. Then came the second round and one of the most horrific injuries in sports history.<\/p>5. UFC 168 – Anderson Silva vs Chris Weidman 2 <\/h2>